9910001110221 has 12 divisors (see below), whose sum is σ = 14314573645372. Its totient is φ = 6606608515776.

The previous prime is 9910001110193. The next prime is 9910001110231. The reversal of 9910001110221 is 1220111000199.

It can be written as a sum of positive squares in 2 ways, for example, as 2429015760900 + 7480985349321 = 1558530^2 + 2735139^2 .

It is not a de Polignac number, because 9910001110221 - 2⁶ = 9910001110157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9910001110231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3829366 + ... + 5872311.

Almost surely, 2^{9910001110221} is an apocalyptic number.

It is an amenable number.

9910001110221 is a deficient number, since it is larger than the sum of its proper divisors (4404572535151).

9910001110221 is a wasteful number, since it uses less digits than its factorization.

9910001110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9815180 (or 9815177 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 9910001110221 in words is "nine trillion, nine hundred ten billion, one million, one hundred ten thousand, two hundred twenty-one".